EP 2375576 A1 20111012 - Clear-channel system and related applications
Title (en)
Clear-channel system and related applications
Title (de)
Klarkanalsystem und zugehörige Anwendungen
Title (fr)
Système de canal libre et applications connexes
Publication
Application
Priority
- EP 07794744 A 20070510
- US 42050106 A 20060526
Abstract (en)
A wireless spread-spectrum communication system for transmitting data includes a plurality of end point transmitters and at least one receiver. The end point transmitters transmit data via a frequency-hopped spread-spectrum FHSS signal wherein a receiver is configured for taking a series of measurements of the power level of signals received on the predetermined channels within the predetermined frequency band; evaluating the series of measurements over a predetermined time period; constructing a band profile of the signal levels received on the predetermined channels; identifying noisy channels within the predetermined channels based on the band profile; and enabling the FHSS transmitter to adjust its transmission of signals to transmit signals avoiding identified noisy channels.
IPC 8 full level
H04B 1/715 (2011.01)
CPC (source: EP US)
H04B 1/715 (2013.01 - EP US); H04B 2001/7154 (2013.01 - EP US)
Citation (applicant)
- US 5056107 A 19911008 - JOHNSON DENNIS F [CA], et al
- US 50050703 P 20030905
- US 50051503 P 20030905
- US 50050403 P 20030905
- US 50047903 P 20030905
- US 50055003 P 20030905
- US 65576003 A
- US 65575903 A 20030905
- US 22225600 P 20000801
- US 22265705 A 20050909
- US 50050603 P 20030905
- US 20934805 A 20050822
Citation (search report)
- [XAYI] WO 0152436 A1 20010719 - AWARE INC [US]
- [Y] WO 9610300 A1 19960404 - SANDERFORD HUGH BRITTON JR [US]
- [Y] US 6018543 A 20000125 - BLOIS GARY V [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
US 2007274373 A1 20071129; US 8243773 B2 20120814; CA 2652577 A1 20071206; CA 2652577 C 20170214; EP 2022173 A2 20090211; EP 2022173 A4 20130626; EP 2022173 B1 20160127; EP 2375576 A1 20111012; EP 2375576 B1 20130710; US 2012099620 A1 20120426; US 2013051431 A1 20130228; US 8908741 B2 20141209; WO 2007139678 A2 20071206; WO 2007139678 A3 20080313
DOCDB simple family (application)
US 42050106 A 20060526; CA 2652577 A 20070510; EP 07794744 A 20070510; EP 10182898 A 20070510; US 2007011319 W 20070510; US 201113293573 A 20111110; US 201213660081 A 20121025